EPA Method 525.2 Pesticide Level 4

2,3,4,6-Tetrabromo[13C6]phenol, 1.2ml x 100ug/ml, toluene

4,4'-DDE, 100 µg/ml, Acetonitrile, 5ml

4,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 72-55-9